Thursday, December 20, 2007

How many humans…

…can be sustained on this planet? Is it 6.63 billion (today’s number?) I seriously doubt it; intuitively, it would seem to me that around 3 billion might be earth’s maximum population if we are looking at sustainability and long term survival of the human specie. But of course, it could also be 2, 4 or perhaps 5 billion; who really knows? Before I start researching the subject, is there anyone who could shed a light on that issue?

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